. 



CATALOGUE OF SPECIES. 97 



Sorbus occidentalis (Wats.) Proc. Aniei*. Acad, xxiii. 263 (1888), under Ptjrm; 

 Greene, El. Fran. 54 (1891). Type localities, "Mount Adams, at 5,000 to 6,000 test 

 altitude," "at Summit in the Sierra Nevada," "on the Big Tree road at 6,000 feet 

 altitude," and "in Ebhett's Pass at 6,500 to 8,500 feet." 



Near Mineral King, Sierra Nevada (No. 1425), This western mountain ash is a 

 mere shrub, seldom exceeding 2 meters in height. 



Heteromeles arbutifolia Ait. f. llort. Kew. ed. 2. iii. 202 (18ll), under Crataegus; 

 Room. Syn. Monogr. iii. 105 (1847). Type locality, "California." 



This handsome shrub occurred on the south slope of the San Bernardino Moun- 

 tains at a low altitude (No. 117), and on the south slope of the Sierra Liebre (Mer- 

 riaiu). It is characteristic of the intramontane region. 



Amelanchier alnifolia Nutt. (Jon. i. 306 (1818), under Aroma; Nutt. Journ. Acad. 

 Phila. vii. 22 (1834). Type locality, "in ravines and ou the elevated margins of 

 small streams from Fort Mandan to the Northern Andes," i. e. the Rocky Mountains. 



Nos. 4224 and 1455 are fruiting specimens having leaves slightly pubescent on both 

 sides (a scant pubescence remaining about the inflorescence), and villous stipules; in 

 fact, the ordinary form of the species No. 062 is in flower. The petals are of the 

 ordinary length of A. alnifolia from the Great Basin mountains, 6 mm. or less, the calyx 

 lobes arc rolloxeil and subulate, as in the common plant, and the form of the leaves 

 is the same; yet our specimens are perfectly glabrous, oven to calyx teeth, bracts, 

 and stipules. 



In Cottonwood Canon, Panamint Mountains (No. 962); in Tejon Cation (No. 4224); 

 and on the East Fork of the Kaweah River, near Mineral King (No. 1455). An 

 Amelanchier, presumably of this species, was seen in the winter at Mountain Spring 

 in the Charleston Mountains, Nevada, in the pifiou belt: Ur. Merriam reported the 

 species also from Utah, on the eastern slope of the Beaverdam Mountains and between 

 the upper crossing of the Santa Clara and Mountain Meadows; and from Nevada, 

 on the North Mormon, Pahroc, and Magruder mountains. 



Amelanchier pallida Greene, Fl. Fran. 53 (1891). Type locality, "dry hills of 

 the northern and northeastern parts of the State," i. e. California, 



Our specimens of this plant arein fruit and differ from ./. alnifolia in thefew-flow- 

 ered racemes and entire, or very near the apex sometimes sparingly denticulate, 

 cuspidate loaves. The leaves and inflorescence are sparingly pubescent, like the 

 ordinary A. alnifolia, and have the same villous bracts and stipules. Only two shrubs 

 about 2 meters high were seen, in woods of Quercus chrysolqns in a ravine back (south) 

 of Fort Tejon (No. 1168), and accompanied by Acer macrophyllum. The leaves are 

 strikingly different from those of A. alnifolia. I have examined a duplicate of Pro- 

 fessor Greeno's type specimen, collected by himself and by Dr. C. C. Parry in Siskiyou 

 County, California, and I find the plants to be identical. The present station is 

 about 500 miles in an air lino from the original locality, and it has not yet been re- 

 ported from intermediate stations. 



Peraphyllum ramosissimum Nutt. in Torr. & Gr. FL i. 474 (1840). Type local- 

 ity, " dry hill-sides near the Hlue Mountains of the Oregon." 



Dr. Merriam and Mr. Bailey found this shrub at Mountain Springe Pass, Charleston 

 Mountains, on Mount Magruder. Hungry Hill Summit, the Highland Range, and the 

 Juniper Plateau, Nevada, and at Mountain Meadow, Utah (No. 1964). 



SAXIFRAGACEiE. 



Saxifraga bryophora Gray, Proc. Amer. Acad. vi. 533 (1865). Type locality, 

 "Ebhett's Pass and on a peak near Mount Dana, nit. 0.000 feet, on wet rocks." 



This delicate and beautiful alpine saxifrage is interesting as exhibiting to an 

 unusual degree adaptation to asexual reproduction, a character frequent in boreal 



13005— No. 1 7 



